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https://github.com/deruiter/DCF77-Analyzer-Clock-V2.0.git
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With this library, you can use Common ANODE displays if you want with the Maxim 72xx chips!
189 lines
6.6 KiB
C++
189 lines
6.6 KiB
C++
/*
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* LedControl.h - A library for controling Leds with a MAX7219/MAX7221
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* Copyright (c) 2007 Eberhard Fahle
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*
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* Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use,
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* copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following
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* conditions:
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*
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* This permission notice shall be included in all copies or
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* substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*/
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#ifndef LedControl_h
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#define LedControl_h
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#if (ARDUINO >= 100)
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#include <Arduino.h>
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#else
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#include <WProgram.h>
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#endif
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/*
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* Segments to be switched on for characters and digits on
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* 7-Segment Displays
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*/
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const static byte charTable[128] = {
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B01111110,B00110000,B01101101,B01111001,B00110011,B01011011,B01011111,B01110000,
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B01111111,B01111011,B01110111,B00011111,B00001101,B00111101,B01001111,B01000111,
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B00000000,B00000000,B00000000,B00000000,B00000000,B00000000,B00000000,B00000000,
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B00000000,B00000000,B00000000,B00000000,B00000000,B00000000,B00000000,B00000000,
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B00000000,B00000000,B00000000,B00000000,B00000000,B00000000,B00000000,B00000000,
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B00000000,B00000000,B00000000,B00000000,B10000000,B00000001,B10000000,B00000000,
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B01111110,B00110000,B01101101,B01111001,B00110011,B01011011,B01011111,B01110000,
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B01111111,B01111011,B00000000,B00000000,B00000000,B00000000,B00000000,B00000000,
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B00000000,B01110111,B00011111,B00001101,B00111101,B01001111,B01000111,B00000000,
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B00110111,B00000000,B00000000,B00000000,B00001110,B00000000,B00000000,B00000000,
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B01100111,B00000000,B00000000,B00000000,B00000000,B00000000,B00000000,B00000000,
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B00000000,B00000000,B00000000,B00000000,B00000000,B00000000,B00000000,B00001000,
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B00000000,B01110111,B00011111,B00001101,B00111101,B01001111,B01000111,B00000000,
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B00110111,B00000000,B00000000,B00000000,B00001110,B00000000,B00000000,B00000000,
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B01100111,B00000000,B00000000,B00000000,B00000000,B00000000,B00000000,B00000000,
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B00000000,B00000000,B00000000,B00000000,B00000000,B00000000,B00000000,B00000000
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};
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class LedControl {
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private :
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/* The array for shifting the data to the devices */
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byte spidata[16];
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/* Send out a single command to the device */
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void spiTransfer(int addr, byte opcode, byte data);
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/* We keep track of the led-status for all 8 devices in this array */
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byte status[64];
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/* Data is shifted out of this pin*/
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int SPI_MOSI;
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/* The clock is signaled on this pin */
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int SPI_CLK;
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/* This one is driven LOW for chip selectzion */
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int SPI_CS;
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/* The maximum number of devices we use */
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int maxDevices;
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public:
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/*
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* Create a new controler
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* Params :
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* dataPin pin on the Arduino where data gets shifted out
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* clockPin pin for the clock
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* csPin pin for selecting the device
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* numDevices maximum number of devices that can be controled
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*/
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LedControl(int dataPin, int clkPin, int csPin, int numDevices=1);
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/*
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* Gets the number of devices attached to this LedControl.
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* Returns :
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* int the number of devices on this LedControl
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*/
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int getDeviceCount();
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/*
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* Set the shutdown (power saving) mode for the device
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* Params :
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* addr The address of the display to control
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* status If true the device goes into power-down mode. Set to false
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* for normal operation.
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*/
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void shutdown(int addr, bool status);
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/*
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* Set the number of digits (or rows) to be displayed.
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* See datasheet for sideeffects of the scanlimit on the brightness
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* of the display.
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* Params :
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* addr address of the display to control
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* limit number of digits to be displayed (1..8)
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*/
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void setScanLimit(int addr, int limit);
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/*
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* Set the brightness of the display.
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* Params:
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* addr the address of the display to control
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* intensity the brightness of the display. (0..15)
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*/
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void setIntensity(int addr, int intensity);
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/*
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* Switch all Leds on the display off.
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* Params:
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* addr address of the display to control
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*/
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void clearDisplay(int addr);
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/*
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* Set the status of a single Led.
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* Params :
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* addr address of the display
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* row the row of the Led (0..7)
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* col the column of the Led (0..7)
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* state If true the led is switched on,
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* if false it is switched off
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*/
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void setLed(int addr, int row, int col, boolean state);
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/*
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* Set all 8 Led's in a row to a new state
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* Params:
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* addr address of the display
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* row row which is to be set (0..7)
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* value each bit set to 1 will light up the
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* corresponding Led.
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*/
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void setRow(int addr, int row, byte value);
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/*
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* Set all 8 Led's in a column to a new state
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* Params:
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* addr address of the display
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* col column which is to be set (0..7)
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* value each bit set to 1 will light up the
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* corresponding Led.
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*/
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void setColumn(int addr, int col, byte value);
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/*
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* Display a hexadecimal digit on a 7-Segment Display
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* Params:
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* addr address of the display
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* digit the position of the digit on the display (0..7)
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* value the value to be displayed. (0x00..0x0F)
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* dp sets the decimal point.
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*/
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void setDigit(int addr, int digit, byte value, boolean dp);
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/*
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* Display a character on a 7-Segment display.
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* There are only a few characters that make sense here :
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* '0','1','2','3','4','5','6','7','8','9','0',
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* 'A','b','c','d','E','F','H','L','P',
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* '.','-','_',' '
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* Params:
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* addr address of the display
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* digit the position of the character on the display (0..7)
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* value the character to be displayed.
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* dp sets the decimal point.
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*/
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void setChar(int addr, int digit, char value, boolean dp);
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};
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#endif //LedControl.h
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